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40815 LEGO Birthday Party Cake thumbnail image

40815 LEGO Birthday Party Cake
Images 6Description 
40815 LEGO Birthday Party Cake
  • Birthday Party Cake thumbnail
  • Birthday Party Cake thumbnail
  • Birthday Party Cake thumbnail
  • Birthday Party Cake thumbnail
  • Birthday Party Cake thumbnail
  • Birthday Party Cake thumbnail

LEGO 40815 Birthday Party Cake is a Seasonal set currently available at retail for $14.99 and is projected to retire in mid and late 2026. Current new-sealed secondary market prices range from $20 to $30, with the average above MSRP at $16.

Forecast Model

This represents the expected annual growth (CAGR) based solely on a forecast model.
LEGO 40815 Birthday Party Cake is a Seasonal Birthday set released in 2025, containing 219 pieces. The main build is a tiered cake model with an opening section that reveals a hidden compartment holding pink and yellow flowers. It includes 10 buildable candles that can be placed on the cake. The cake and accessories allow configurable decoration for birthdays and other occasions.

Once retired, the expected annual growth will be close to 4% after the second year, valuing the set between $17 and $18 shortly after it is retired.
Retirement risk. Birthday Party Cake is anticipated to retire shortly across most LEGO retail markets and regional LEGO.com platforms, with a number of regions having already done so.
All regions

For Sale (New/Sealed)

This chart shows the sales listing trends of 40815 Birthday Party Cake.
 (US) Official LEGO Birthday Party Cake
BrickEconomy Choice
$14.99
(NL) BrickLink store Super Brick Store $17.10
+14.1%
(US) 40815 Birthday Party Cake $17.94
+19.7%
(FR) Miscellaneous Items - The Birthday Cake 40815LEGO40815 $19.11
+27.5%
(US) Birthday Party Cake Craft for Kids 40815 $19.43
+29.6%
(US) LEGO Exclusive 40815 Birthday Party Cake 219 pcs. Brand NewCarefully Shipped $19.95
+33.1%
(US) Birthday Party Cake Set 40815 Buildable Birthday Cake Lego Decorations $20.00
+33.4%
(US) BrickLink store BrickNGo $20.00
+33.4%
(CH) BrickLink store BeeToys $20.41
+36.2%
(IT) 40815 Birthday Cake $20.50
+36.8%
(US) Birthday Party Cake - Building Toy for Boys & One Size, Multicolor $20.94
+39.7%
(UK) SLIGHT WEAR ON BOX - MESSAGE IF YOU ARE CONCERNED WITH BOX CONDITION $21.17
+41.2%
(IT) 40815 Birthday Cake $21.57
+43.9%
(IT) BrickLink store Blackrhino $21.67
+44.6%
Show 16 more listings

Sets in Seasonal / Birthday

40807 Birthday Numbers

Theme / Subtheme Seasonal / Birthday
Year 2025
Pieces 281
Availability Limited retail (Retiring soon)
40807 LEGO Birthday Numbers
Retail $19.99
Available at retail
Retiring soon

40871 Gift Box Celebration

Theme / Subtheme Seasonal / Birthday
Year 2026
Pieces 224
Availability Retail
40871 LEGO Birthday Gift Box Celebration
Retail $19.99
Available at retail

40641 Birthday Cake

Theme / Subtheme Seasonal / Birthday
Year 2023
Pieces / Minifigs 211 / 2
Availability Retired
40641 LEGO Birthday Cake
Retail $14.99
Value $24.99
Growth  +66.7%
Annual growth 17.8%

40905 Birthday Cupcake

Theme / Subtheme Seasonal / Birthday
Year 2026
Pieces / Minifigs 174 / 1
Availability Retired
40905 LEGO Birthday Cupcake
promotional
Value $25.58

40780 Birthday Cake

Theme / Subtheme Seasonal / Birthday
Year 2025
Pieces / Minifigs 160 / 1
Availability Retired
40780 LEGO Birthday Cake
promotional
Value $19.82
Annual growth 5.3%

40584 Birthday Diorama

Theme / Subtheme Seasonal / Birthday
Year 2023
Pieces / Minifigs 157 / 2
Availability Retired
40584 LEGO Birthday Diorama
promotional
Value $17.99
Annual growth 2.6%

40382 Birthday Set

Theme / Subtheme Seasonal / Birthday
Year 2020
Pieces / Minifigs 141 / 1
Availability Retired
40382 LEGO Birthday Set
Retail $12.99
Value $36.43
Growth  +180.4%
Annual growth 35.4%

40226 Birthday Buddy

Theme / Subtheme Seasonal / Birthday
Year 2016
Pieces 133
Availability Retired
40226 LEGO Birthday Buddy
promotional
Value $11.14
Annual growth 27.1%

40153 Birthday Table Decoration

Theme / Subtheme Seasonal / Birthday
Year 2015
Pieces 120
Availability Retired
40153 LEGO Birthday Table Decoration
Retail $9.99
Value $24.99
Growth  +150.2%
Annual growth 9.6%

853906 Birthday Card

Theme / Subtheme Seasonal / Birthday
Year 2019
Pieces / Minifigs 40 / 1
Availability Retired
853906 LEGO Birthday Card
Retail $9.99
Value $14.99
Growth  +50.1%
Annual growth 3.1%

850791 LEGO Minifigure Birthday Set

Theme / Subtheme Seasonal / Birthday
Year 2013
Pieces / Minifigs 28 / 2
Availability Retired
850791 LEGO Minifigure Birthday Set
Retail $7.99
Value $12.16
Growth  +52.2%
Annual growth 3.7%

40048 Birthday Cake

Theme / Subtheme Seasonal / Birthday
Year 2012
Pieces 24
Availability Retired
40048 LEGO Birthday Cake
Retail $4.99
Value $9.14
Growth  +83.2%
Annual growth 4.5%

5004931 Birthday Card

Theme / Subtheme Seasonal / Birthday
Year 2017
Pieces / Minifigs 20 / 1
Availability Retired
5004931 LEGO Birthday Card
Retail $4.99
Value $11.23
Growth  +125.1%
Annual growth 5.5%

My Collection

Birthday Party Cake Reviews

20 reviews
4.7
Collectors
Investors
Brick Fanatics
“40815 Birthday Party Cake is much too small to fit 40807 Birthday Numbers on top, but the 219-piece exclusive LEGO set is still an enticing model for its colors and candles to place on top, celebrating the big day.”
Full review at www.brickfanatics.com

About Seasonal Birthday

Happy Birthday! Celebrate your birthday with some cute LEGO birthday sets that can be used to give away as presents or simply as decorations. With the Birthday subtheme introduced in 2012 these little sets, while have not been a hit for investors, has produced some memorable sets to collectors of all types.

Birthday was introduced in 2012 and currently consists of 14 sets.
Read more
Add a sweet touch to celebrations with this playful LEGO Birthday Party Cake kit for boys, girls and loved ones aged 7 and up. The buildable birthday cake opens to reveal a hidden compartment where there are pink and yellow flowers to decorate the cake. Every birthday cake needs candles, and youll find 10 of them included. Choose how many to add to this LEGO birthday cake toy so you can personalize the cake to reflect kids ages.

This set makes a fun birthday gift that can be played with long after the celebrations are over. Why not create a family tradition and bring it out year after year as part of your birthday party decor? But its not just for birthdays. This LEGO cake set is also a fun gift or decoration for any special occasion. So get ready to serve an extra slice of fun at your next celebration.

Buildable birthday cake kit This LEGO Birthday Party Cake kit for boys, girls and loved ones aged 7 and up comes with decorations and candles to build a customizable...
Description provided by LEGO©